Reaction product of a polyhydroxyl alcohol with a trivalent metal sulfate



softeners.

by many dry-cleaning procedures. In addition the present invention provides readily Patented Apr. 5, 1949 REACTION PRODUCT OF A POLYHYDROXYL ALCOHOL WITH A SULFATE TBIVALENT DIETAL' Milton Landau, New York, N. Y.

No Drawing. Application December 13, 1946,

- Serial N0. 716,179

This invention relates to inorganic resinous compositions in the form of salts of trivalent metals in which water of crystallization is replaced at least in part by organic material such, for example, as dibasic alcohols. It is herein illustrated in some detail as embodied in viscous liquid resin-like substances carrying the sulfate of chromium or the sulfate of aluminum or the sulfate of iron, that is, metals which form alums or other alum-type salts.

The alcohol-carrying sulfates of the present invention vary in solubility, Some of them are insoluble in several organic solvents,.although their permanent and stable resinous form enables them to serve as softeners, fiexibilizers and sizes for textiles, or as ingredients of such sizes and Thus they ar not removed or inmiscible and stable astringents, fire retardants, clarifiers and tanning agents.

Other features and advantages will hereinafter appear.

Aluminum sulfate hydrate (ca y g 18H20) was heated slowly with an equal weight of ethylene glycol with constant stirring until boiling at a temperature of about 120 degrees C. Boiling was continued until the final product weighed about 75% of the combined original weights, yielding a very viscous, water-white liquid of specific gravity of about 1.2, with a pH in 5% aqueous solution of about 5, soluble in hot water, hot ethylene glycol, hot glycerol, hot diethylene glycol, but insoluble in ethyl alcohol,- mineral oil, petroleum benzine, benzol, olive oil or raw linseed oil.

Technical aluminum sulfate yields a milkwhite viscous resinous liquid, which may be made clear if the sulfate is dissolved in dilute acid, mixed with ethylene glycol, and then gently boiled to the desired consistency.

when diethylene glycol or glycerol was substituted for the ethylene glycol and the mixture boiled down to 88% of the original mixed materials, a similar product was obtained having similar properties.

Triethylen glycol was substituted for ethylene glycol and heating continued down to 85% of the original combined weights. The cooled product was yellowish, slightly odorous, specific gravity about 1.3; other properties substantially the same as for ethylene glycol.

Propylene glycol was substituted for ethylene glycol and heating continued down to 77% of the original combined weights. The cooled product 2 Claims. (Cl. 260-438) weight to the sulfate.

was water white, with an ethereal odor, specific gravity about 1.4; other properties substantially the same as for ethylene glycol.

' Aluminum, sulfate was dissolved in a minimum of boiling water and sorbitoi added equal in The solution was boiled gently with constantstirring until the product weighed 97% of the original combined weights of sulfate and sorbitol. The cooled product was highly viscous (like tar), brown in color, slight caramel odor, specific gravity about 1.9, solubilities as for ethylene glycol-aluminum sulfate resin.

Aluminum sulfate hydrate was dissolved in a minimum of boiling water and mannitol added equal to one half the weight of the sulfate. The solution was boiled gently with constant stirring until the product weighed 98% of the original combined weights of sulfate and mannitol. The cooled product was highly viscous, water white in color, slight ethereal odor, specific gravity about 1.6, soluble in hot water, hot ethylene glycol, hot glycerol; but insolubl in diethylene glycol, ethyl alcohol, mineral oil, benzine, benzol, olive oil, or raw linseed oil.

Ammonia alum (ammonium aluminum sulfate carrying 12H2O) added to one-third of its weight of ethylene glycol and heated gently with constant stirring until the product weighed 77% of the combined weights of the materials yielded a very viscous, water-white, slightly clouded, odorless material of a specific gravity of about 1.3. The 5% aqueous solution had a pH of about 5. It was soluble in hot water, hot ethylene glycol, hot glycerol, but insoluble in diethylene glycol, ethyl alcohol, mineral oil, petroleum benzine, benzol,

olive oil or raw linseed oil.

When glycerol was substituted for the glycol with ammonia alum and the evaporation continued to 82% of original weights, a product was obtained of substantially the same properties.

Crystalline ammonium chromium sulfate (carrying 12H2O) was added to an equal weight of ethylene glycol and gently boiled with constant stirring at about degrees C. until the product weighed about 61 of the combined original weights. The cooled product was a very viscous dark green odorless liquid with a specific gravity of about 1.4, and a pH in 5% aqueous solution of about 4.5.

It was soluble in hot water, hot ethylene glycol, hot glycerol, slightly soluble in hot diethylene glycol or hot ethyl alcohol, and insoluble in mineral oil, petroleum benzine, benzol, or raw linseed oil or olive oil.

' 2,466,445 3 a bi en? ecliwasisuhstitutedzforglyecljwith l f a'I'he sorbltokanidmahnitoliare; ava a e; I sulfate and evaporated commercially and slx hydroxyi washout: 115 degrees: a. to 84% -of:the ol; glyeeflne caniesthree-groups;. w I

1 combined weights; theiproduct: had substantially. l Moreover; the -i forego ng compositions of mate thesameproperties; g v 5 5 1 v 1 v tel descrlhed as-soiubie-inzhoj; iglycgl l mfgl ycgrgl i chromini :siulfate :Ccarrying 115K201 i Y 01': hot: diethyleneiglycol were not-readily soluble: 5 i :was dissolved :in a um: or boiiing wateran'd: thecorrespond n c l p lr looh lg 'rhus the i ethylene glycol: added. ratio era: to 51: or the I ;oompositlons=of miatter were: difierent tram sol sulfate; and the nine! solution boiled gently at; f i 1 i ns of solidsinthepolya'lcohols: fioiloidizanon msdegrees Qwithzconstantrstirringuntilzthe-lcisprobable;=:.='=i-: e I final Product weighed 78% of the: original com-" i fiometlmes; it was found useful to: two of bi'ned weights of su iateand eiycolz 1 iThe: cooled t e 185 1101 5: iiduldsz isometimesit possible to; i product :was :veryyiscous, dark green; odorless; push; evaporation to; obtain: a glassy; resmehke snecificegrayityiabout-l.4;pl=tln.5%:aqueoussolua 'i i f i iitnabolltifilolflblefih hot watensuightiy soluble; I a e: v diu ents or in hot ethylene glycol; hot; glycernl but insulubie fi invention, what rsclarmedrg: E f i i 1 v f iin ethyl; alcohol; mineral; ioid; benmne; :henz ol. r 12-51'1 product obtained: by heatmg a mixture summer raw linseedoiL: I a 1 i I 1 i 1 3 z 5 eomu sins essentia ly: {a :polyhydroxyl :alcoho ontaining; :not more than six hydroxyl gr u consisting 50f: carbon; hydrogen: and ox ygien the oxygen being iseiected: from the? group :of ether y n: and hydroxyl: oxygen; and also: compris ing; essentially 5a, sulfate selected from the: con s i of; tehe trivalent surfaces of; am um and iron: and their reisneeeve: alums with the; sulfates 5 of: the alkali metals and am moniunr; said i product being :a weighing less 2 than 5 the; slim f the f initial weights jay be added and? en l boi n andsurningeo ..o 5 sa dii hydroxyl; alcohoi and said su fate; ems. with the desired confs'istencyis. obtained. and not being; readily s mar said polyhydroxyl lierricza ulfatehydrate icarryingl=9HzOYwas="walcoholwhencnlds zfr ifi;i ;i :;i; ad ed? to unequa aws shtor; ethylene ycol; and :52; ;'I;'he5 product jobtained by heating mmune nt hea e with flfi l fi nt sfi rrins at a boilin :temperatureof. about 12.0 degrees; 0.; Evaporation was {continued until: the :fin al product weighed 3 %i of th mmbinsjd o i n l iw i htsi The or .eipitate first; formed during i this process disappeared during the final-stage OiievapOi'aiiiln; The: 56001861; rwd st wa i r v co f ua r brownv I odorless, specific gravityabout l:.6',-solub1e-in cold-- 'watfinhot ethylene glycol; hot diethyiene glycol; i f I w'iREFERENGES CITED 1 1 Potassium: chromluan sulfate :(gcarrying 12320.) wa szdiss lved in: a minimum of boilin water and i e ene: ly l added; in th r tio of to? 2 o the: sulfate; fil'he solation was boiled gently a 103 d grees 3 Q: with ico s aut st r ing: until 1 the 1 ,final product weighed; 911%; for; the original; com b ned weights :03.; sulfate and glycol; i The ool d :25 od ct :had sub t nt a ly: t e same proherties -S= E I=C IQmiQ H:If8iI Bf-'i l Tif;f; ;iii

1': any :of these resins ar too viscous; water an egual; weight as aluminum; senate; sa is prod not being a; viscous; material weighing less; than the; sum of the; initial weights ;of said glycol d;

- I ots e 1. hot l alcohol? decomposed The following references are of record in the hot water; insoluble in benzine, benzol, mineral file of this patent; oil, olive oil, raw linseed oil.

Glycerol was substituted for ethylene glycol in UNITED STATES PATENTS the foregoing process and evaporation continued Number N D t down to 97% of the original combined weights. 1,513,233 F g t 23, 1924 The flnalproduct had substantially the same 2,084,261 Boughton et a1. June 15, 1937 properties. 2,114,985 Schuler Apr. 19, 1938 Ferric ammonium sulfate (ferric alum carry- 2,223,349 Bremer 3, 1940 lng 12H20) was added to an equal weight of 2,255,515 Popper Sept, 9, 1941 ethylene glycol and heated gently with constant stirring at a boiling temperature of about 120 OTHER REFERENCES degrees C. Evaporation was continued until the Gomer et 2.1., "Jour. Am. Chem. Soc," vol. 66 final product weighed 62% of the original com- (1944), pp. 1331-1333. bined weights. The precipitate first formed dur- Grun, "Ber. deutsch. chem. Ges., vol. 43 ing this process disappeared during the final (1910),pp.1051-1052. stage of evaporation. The cooled product was Mellor, "Modem Inorganic Chemistry (Rev. viscous, dark brown, odorless, specific gravity ed. 1939).pp. 670-671. about 1.5, soluble in hot ethylene glycol, hot di- Grun et al., Ber. deut. Chem. Ges., vol. 41, ethylene glycol, and hot glycerol; slightly soluble pages 3465-3477 (1908). in hot ethyl alcohol; decomposed by hot water; insoluble in benzine, benzol, mineral oil, olive oil, raw linseed oil. 

